(19)

(11)

EP 0 722 585 A1

(12)

(43) Date of publication: 24.07.1996 Bulletin 1996/30 (21) Application number: 94928189.0 (22) Date of filing: 23.09.1994

(51) International Patent Classification (IPC):  G06F 3/ 06( . ) G11C 16/ 10( . ) G06F 12/ 02( . ) G11C 16/ 34( . ) (86) International application number: PCT/US1994/010803 (87) International publication number: WO 1995/010083 (13.04.1995 Gazette 1995/16)

(84) Designated Contracting States: BE DE ES FR GB IE IT NL PT (30) Priority: 04.10.1993 US 19930131495 (71) Applicant: CIRRUS LOGIC, INC. Fremont, California 94538 (US)	(72) Inventors: ASSAR, Mahmud Morgan Hill, CA 95037 (US) ESTAKHRI, Petro Pleasanton, CA 94566 (US) NEMAZIE, Siamack San Jose, CA 95120 (US) MOZAFFARI, Mahmood San Jose, CA 95120 (US) (74) Representative: Beresford, Keith Denis Lewis, et al  BERESFORD & Co. 2-5 Warwick Court High Holborn London WC1R 5DJ London WC1R 5DJ (GB)